Combination harrow



Feb. 24, 1931. G. c. FARRILL 1,793,919

COMBINATION HARROW Filed Sept. 9. 1929 2 Sheets-Sheet l Z f5] gq uf/o /b 'I' /l P19924, 1931. G. C.' FARRlLL 1,193,919

COMBINAT I ON HARROW Filed Sept. ,9, 1929 2 Sheets-Sheet 2 aucnmq Patented Feb. 24, 1931 UNITED STATES PATENT OFFICE GROVER C. FARRILL, OF DALLAS, TEXAS, ASSIGNOR OF TWENTY PER CENT T FRANK LADYMON, 0F DALLAS, TEXAS COMBINATION :marrow Application led September 9, 1929.` Serial No. 391,490.

This invention relates to new and useful improvements in combination harrows. l

Une obj ect of the invention is to provide a harrow oesigned for use on uneven land and 5, particularly for harrowing the turrows and the sides olf the rows, as well as the ridges oi the rows.

A particular object ot' the invention is to provide a 1narrow comprising a main body is provided with harrowing teeth and a harrowing section flexibly attached to the body so as to drop below the body and barrow lurrows, depressions or uneven places in the land.

A further object of the invention is to provide a flexibly suspended barrow section arranged and shaped to harrow the sides as well as the bottom of a furrow or other land depression.

A construction designed to carry out the invention will be hereinafter described together with other features of the invention.

The invention will be more readily understood from a reading of the following speces itieation and by reference to the accompanying drawings in which an example of the invention is shown, and wherein:

Figure 1 is a plan view of a harrow constructed in accordance with the invention,

Ilo Figure 2 is an enlarged transverse sectional view taken on the line 2-2 oi Fig ure 1,

Figure 3 is a detail of the cross bar and tooth mounting,

:i3 Figures il, 5 and 6 are details of the cross bar adjusting means, and

Figures 7 and 8 are details of the lever mechanism for actuating the cross bar adjusting means, and

20 Figure 9 is a vertical section taken on the line 9-9` oi Figure 1.

In the drawings the numeral 1() designates longitudinal beams with circular openings 11 provided therein for receiving cross bars i 13. The cross bars are held against horizontal displacement by means of pins 14 secured in the bars on each side of the beams and adjacent thereto. The pins are held in place by lock washers 15 and are of suilicient 50 length to extend beyond the rims ot the lll opei'lings and still permit the rotatable movement ot said cross iars withinthe openings. Harrow teeth 1G are mounted on the cross bars in grooves 17, provided forthe purpose, and rigidly secured thereon by eye bolts 18 which extend through said crossbars and are secured thereto by nuts 19. A triangular section 20 is loosely suspended in the center ot' the harrow by flexible connections secured to both sides and to the `iorward end. The flexible connections comprise adjustable chains 21 suitably secured to the triangular sectionand connected to the hooks 22 which are secured on the sides to the beams and at the forwardend toa cross bar;

The` hook 22 has "an upright extended end 22 (Figure 9) which forms a guard and prevents the chain from slipping accidentally off the hook. `The triangular section bcing loosely suspended by adjustable chains may be adjusted for` harrowing normally deep furrows or depre" lions or normally shallow Jfurrows or depressions, as said section will loweritself into said fur-rows when the harrow is dragged over them, thereby cultivating the sides and bottom as well as the ridges i the 'lurrows i j The `center cross bar arched at 13 over the triangular section so that said section may beraised flush with the rest ol the lim-row7 .wftliereby allowing :lor the` use oi this barrow in the f :ultivation ot level soil, as well as :turrowed soil. Harrow teeth 1.(3 are mountw ed on the triangular section,preferably in a slight rearwardly inclined position, giving themja small pitch.; which will allow tor the freeing ot trash. j Angular arms 23 are rigidly secured to the top of thecross bars in ,longitudinal alinement tor the pivotal mounting thereon ot a longitudinal adjusting bar 24. The angular arms are ot sutlicient height to allow the adjusting bar to clear the arched portion ot the center cross bar to which it is pivotally attached by a shorter angular arm 23.

At the rear end of the adjusting bar and immediately over the rear cross bar, aI locl; ing segment 25 is rigidly mounted for engaging a plunger 26 oi? an adjusting lever 27. Said lever is rigidly secured to the rear cross bar so that when the lever is tilted the cross bar is also tilted, thereby allowing the attached teeth to be set at a desired pitch tor the freeing of trash when dragged over the `ground, as is shown in Figure 6. Asthe Cross bars `are all 'pivotally "connected bythe adjusting bar they will be synchronously tilted with the rear cross bar, thereby giving their attached teeth thet desired pitch.

Clevises 28 are secured to the' forward end of the beams for the convenient attaching of suitable dragging' means to the'harro'w.

Various'changes in the `size and shape ot the different parts, as Well as'ino'difications and alterations, may bewmade Within n the scope of theappended claims.

l. In. a Combination harrow, a inain'body Y comprising longitudinal beains and cross bars j-ourna'led 'on thebeains7 teeth mounted on the cross. bars, aharrow section having teeth and flexibly'suspended Vbetween the beams atthe center ot' ythe body and intermediate the eross bars.

' In,l a. combination harrow, a main body comprising longitudinal beams rand Cross 'bars journaledl on the beams, teeth mounted on vthe Crossbar's, a tiaglarshaped harfrow sectin haii/imgk depending teeth, 'and flexible connections att'ahed to two'otthe beams' and f3. Ina combination barrow, a main body comprising longitudinal beams and' cross bars journaledon the beams, teeth mounted on the y.Cross bars', a triangular shaped barrow one ofthe ros's barsfor suspending the sec- V section liavil'ig'depending teeth, and Vflexible vconne'eti'ons attached to two ofthe beams and one of the 'cross bars for' suspending the section, the flexible oonneetions consisting' of adjustable chains and of hooks for `receiving said chains.

4. In a coinbir'iat'ionbarrow, ya mainv harro'w bodyfincludig"transverse b ar's, one of i. said vbz'usbeinzgj; arched at lthe central portion ofthe body, teeth Vdependingfrom' saidbars,

anda'harrow lsection having teeth and tleX'- ibly Vsuspended from the body vunder Isaid arehe'd bar Vfor droppinginto depressions below the ground on Which the teeth of the main' body rest, or or'rising to Work onlevel ground under said arched ban In testimony whereof I affix my signature.

GROVER C. FARRILL. 

